Reflection of HDRI in Cycles not working?
It looks like you need to turn down the roughness on the glossy shader.  Roughness is how much the light scatters away from the perfect specular angle.  It makes for blurrier, less crisp reflections.

Here is a diagram:

The first three examples on the left are a ray hitting glossy surfaces with varying roughness (left to right no roughness to high roughness), the fourth example is a ray hitting a diffuse surface for comparison.